Add build perf baseline eval tests

[JanKrivanek]

No description provided.

[Copilot]

Pull request overview

This pull request adds evaluation test scenarios for the build-perf-baseline skill, which helps developers establish build performance baselines and identify optimization opportunities. The PR creates a multi-project .NET solution intentionally designed with build performance issues (redundant project references, unnecessary analyzer settings) for the AI agent to detect and diagnose.

Changes:

• Added a new test scenario eval.yaml that instructs the AI to measure cold/warm/no-op builds and identify optimization opportunities
• Created a 5-project .NET solution (Common → DataAccess → BusinessLogic → WebApi + Tests) with intentional performance anti-patterns
• Configured Directory.Build.props with performance-impacting settings like GenerateDocumentationFile and EnforceCodeStyleInBuild always enabled

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
eval.yaml	Test scenario definition with assertions for build baseline measurement and optimization recommendations
PerfBaseline.sln	VS solution file defining 5 projects with multiple configurations
PerfBaseline.slnx	Empty XML-based solution file (issue: should contain project entries or be removed)
Directory.Build.props	Shared build properties with intentionally slow settings (doc generation, analyzers always on)
Common/Common.csproj	Base library project with entity models and utilities
Common/Models.cs	Entity, Result, and StringExtensions implementation
DataAccess/DataAccess.csproj	Data access layer depending on Common
DataAccess/Repository.cs	Simple in-memory repository implementation
BusinessLogic/BusinessLogic.csproj	Business logic layer with intentional redundant Common reference
BusinessLogic/EntityService.cs	Service layer wrapping repository operations
WebApi/WebApi.csproj	API entry point with intentional redundant transitive references
WebApi/Program.cs	Console application demonstrating service usage
Tests/Tests.csproj	Test project with intentional redundant references (issue: missing OutputType)
Tests/EntityServiceTests.cs	Simple test implementations with Main method

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[github-actions]

Skill Validation Results

Skill	Scenario	Baseline	With Skill	Δ	Skills Loaded	Verdict
build-perf-baseline	Establish build performance baseline and recommend optimizations	3.3/5	4.0/5	+0.7	✅ build-perf-baseline; binlog-generation; tools: skill, binlog-mcp-load_binlog, binlog-mcp-list_projects, binlog-mcp-get_expensive_tasks, binlog-mcp-get_expensive_targets, binlog-mcp-get_expensive_projects, binlog-mcp-get_node_timeline, binlog-mcp-search_targets_by_name, binlog-mcp-search_tasks_by_name, binlog-mcp-get_expensive_analyzers	✅

Model: claude-opus-4.6 | Judge: claude-opus-4.6

Full results